------- Comment #3 from rakdver at gcc dot gnu dot org  2008-01-26 22:45 -------
Subject: Bug 34711

Author: rakdver
Date: Sat Jan 26 22:44:19 2008
New Revision: 131877

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=131877
Log:
        PR target/34711
        * tree-ssa-loop-ivopts.c (comp_cost): New type.
        (zero_cost, infinite_cost): New constants.
        (struct cost_pair): Change type of cost to comp_cost.
        (struct iv_ca): Change type of cand_use_cost and cost to comp_cost.
        (new_cost, add_costs, sub_costs, compare_costs, infinite_cost_p):
        New functions.
        (set_use_iv_cost, force_expr_to_var_cost, force_var_cost,
        split_address_cost, ptr_difference_cost, difference_cost,
        get_computation_cost_at, get_computation_cost,
        determine_use_iv_cost_generic, determine_use_iv_cost_address,
        determine_use_iv_cost_condition, determine_use_iv_costs,
        cheaper_cost_pair, iv_ca_recount_cost, iv_ca_set_no_cp,
        iv_ca_set_cp, iv_ca_cost, iv_ca_new, iv_ca_dump, iv_ca_extend,
        iv_ca_narrow, iv_ca_prune, try_improve_iv_set, find_optimal_iv_set):
        Change type of cost to comp_cost.
        (determine_iv_cost): Increase cost of non-original ivs, instead
        of decreasing the cost of original ones.
        (get_address_cost): Indicate the complexity of the addressing mode 
        in comp_cost.
        (try_add_cand_for): Prefer using ivs not specific to some object.
        * tree-flow.h (force_expr_to_var_cost): Declaration removed.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-flow.h
    trunk/gcc/tree-ssa-loop-ivopts.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34711

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